I took a random Java file I had laying around that I was working on lately.

~100 lines of code + whitespace

1300-1900 tokens

So if I fed this to OpenAI and said "how can I make this file better/improve upon it", it would have cost:

between $0.03 and $0.12 for this one file using GPT-4

not sure I could use gpt-3.5-turbo since it says it is for chat and not code?

Does that sound right? $0.05 for every file of source code scanned sounds too high for realistic usage. Even $0.01 sounds high? Modern company might have 1,000,000+ files of code, no?